|
207
|
1 // Test that Thread objects are reused.
|
|
|
2 // RUN: %clangxx_hwasan -mllvm -hwasan-globals=0 -mllvm -hwasan-instrument-stack=0 %s -o %t && %env_hwasan_opts=verbose_threads=1 %run %t 2>&1 | FileCheck %s
|
|
|
3
|
|
|
4 #include <assert.h>
|
|
|
5 #include <fcntl.h>
|
|
|
6 #include <pthread.h>
|
|
|
7 #include <stdio.h>
|
|
|
8 #include <stdlib.h>
|
|
|
9 #include <unistd.h>
|
|
|
10
|
|
|
11 #include <sanitizer/hwasan_interface.h>
|
|
|
12
|
|
|
13 pthread_barrier_t bar;
|
|
|
14
|
|
|
15 void *threadfn(void *) {
|
|
|
16 pthread_barrier_wait(&bar);
|
|
|
17 return nullptr;
|
|
|
18 }
|
|
|
19
|
|
|
20 void start_stop_threads() {
|
|
|
21 constexpr int N = 2;
|
|
|
22 pthread_t threads[N];
|
|
|
23
|
|
|
24 pthread_barrier_init(&bar, nullptr, N + 1);
|
|
|
25 for (auto &t : threads)
|
|
|
26 pthread_create(&t, nullptr, threadfn, nullptr);
|
|
|
27
|
|
|
28 pthread_barrier_wait(&bar);
|
|
|
29
|
|
|
30 for (auto &t : threads)
|
|
|
31 pthread_join(t, nullptr);
|
|
|
32 pthread_barrier_destroy(&bar);
|
|
|
33 }
|
|
|
34
|
|
|
35 int main() {
|
|
|
36 // Cut off initial threads.
|
|
|
37 // CHECK: === test start ===
|
|
|
38 fprintf(stderr, "=== test start ===\n");
|
|
|
39
|
|
|
40 // CHECK: Creating : T{{[0-9]+}} [[A:0x[0-9a-f]+]] stack:
|
|
|
41 // CHECK: Creating : T{{[0-9]+}} [[B:0x[0-9a-f]+]] stack:
|
|
|
42 start_stop_threads();
|
|
|
43
|
|
|
44 // CHECK-DAG: Creating : T{{[0-9]+}} [[A]] stack:
|
|
|
45 // CHECK-DAG: Creating : T{{[0-9]+}} [[B]] stack:
|
|
|
46 start_stop_threads();
|
|
|
47
|
|
|
48 // CHECK-DAG: Creating : T{{[0-9]+}} [[A]] stack:
|
|
|
49 // CHECK-DAG: Creating : T{{[0-9]+}} [[B]] stack:
|
|
|
50 start_stop_threads();
|
|
|
51
|
|
|
52 return 0;
|
|
|
53 }
|
